You can extend the service life of ISO-KF seals in high-temperature applications by switching from generic fluoroelastomers (FKM) such as Viton, to perfluoroelastomers (FFKM), and by ensuring the seal is properly sized. ISO-KF (or ISO-QF or ISO-NW) type flange seals
Why do you need to specify the gas flow range on a Mass Flow Controller? The Full Scale (FS) Range and Gas on a Mass Flow Controller (MFC) directly correlates to the transmitted output (analog or digital) of the device.
If you wish to control 3-phase heaters require power controllers, how do you decide which method of control to select? ‘Two-leg versus three-leg control’ and ‘zero cross versus phase-angle control need to be considered.’ The following will help you decide when each method
Serious errors in calibration and display can result if the wrong sensor type is selected on the controller versus what is actually wired to it. Only a physical check of sensor wire and sensor prompts can detect this condition. A
There are many factors to consider when choosing a power control device. The role of the output device is to receive a signal from the temperature controller and switch electric current ON and OFF to the heater. When possible, it
Residual Gas Analyzers (RGAs) are quadrupole mass spectrometers that provide for routine, fast, wide dynamic range measurements of the partial pressures of the species resident in your vacuum chamber or system. Vacuum levels can be analyzed from as low as
If you are measuring the temperature of a static surface, whether or not its temperature is changing, all is good. But what happens when you are changing the surface and its emissivity is also changing? Your pyrometer inaccuracy can increase
The term “vacuum,” as it pertains to the use of vacuum to study its effects or to enable something to happen in a high technology sense, has a broad range of definitions and sub-categories. Two very different definitions are: 1. a space entirely devoid of matter.
If you are depositing dielctric layers using RF and DC (or AC) power simultaneously, you run the great risk of damaging your DC supply and/or creating interference problems. A well designed and constructed “Blocking Filter” will prevent these issues from
There are two common ways to deal with process exhaust effluent: heating the forelines and components to maintain the effluent in a gaseous state until it enters the scrubber, or trapping the effluent in a place where you can access